GCF/LCM with Variables

Pre-AlgebraMrs. Yow

Hot dogs are GREAT!!

How do you like your Hot Dogs?

Your favorite???

So, Why are we talking about hot dogs?

• What is my minimum purchase of hot dogs and hot dog buns in order for me to have an equal amount IF hot dogs are packaged with 10 in a pack and hot dog buns are packaged with 8 in a pack?

NOW – let’s add variables!

• Find the GCF and LCM of the following:28xy212x yz

Let’s try another!

• Find the GCF and LCM of the following:2 2

2

9

12

x y

x

YOU TRY!

• Find the GCF and LCM of the following:2

3

12

18

am

a m

YOU TRY!

• Find the GCF and LCM of the following:2

3

5

10

15

m

m

m

YOU TRY!

• Find the GCF and LCM of the following:

2

2

21

49

42

pt

p t

pt